Honestly, how the fuck did those colors get to be so popular in football?
It's all Villa's fault...
Contrary to popular belief, Aston Villa were the first to wear claret and sky blue. According to Tony Matthews the claret and blue theme was a Scottish influence, combining the maroon of Hearts and the blue of Rangers, with the Scottish lion rampant included in the badge. Yet another theory from Wikipedia states that the club's proposed colours was chocolate and blue, and that chocolate colour, over time, was switched to claret.
West Ham United, then called Thames Ironworks, permanently adopted claret and blue for home colours in the summer of 1899. Irons right-half Charlie Dove received the kit from his father William Dove, who was a professional sprinter of national repute, as well as being involved with the coaching at Thames Ironworks. Dove Sr. had been at a fair in Birmingham, close to Villa Park, the home ground of Aston Villa and was challenged to a race against four Villa players, who wagered money that one of them would win.
Will Dove defeated them and, when they were unable to pay the bet, one of the Villa players who was responsible for washing the team's kit offered a complete side's 'uniforms' to Dove in payment. The Aston Villa player subsequently reported to his club that the kit was 'missing'.
Thames Ironworks, and later West Ham United, retained the claret yoke/blue sleeves design, but also continued to use their previously favoured colours for their away kits, and indeed, in recent years the club have committed to a dark blue-white-sky blue rotation for the away colours.
Burnley FC simply adopted the colours from then league champions Aston Villa in 1910.
The most important issue in the establishment of Trabzonspor was the colours of the club. Although a number of elaborate theories have been put forward as to why claret and blue was adopted, it transpires the club chose the colours in simple tribute to the famous and historic English club Aston Villa...
https://en.wikipedia.org/wiki/Aston_Villa_F.C.